<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>

<body>
  <script>
    
  const [{uname,age,family,family:{matherUname,matherAge}}] =[{uname:'张三',age:18,family:{
        matherUname:'王六',
        matherAge:28
      }}]  
      console.log(uname);
      console.log(age);
      console.log(family);
      console.log(matherUname);
      console.log(matherAge);
  </script>
</body>

</html>